Swing analyzer

a technology of swing analysis and analyzer, which is applied in the field of swing analysis, can solve the problems of inability to accurately calculate the angular velocity of the shaft in a complicated motion, the inability to analyze the swing speed, and the shaft is in a very complicated motion. , to achieve the effect of reducing manufacturing costs and accurately calculating the swing speed
US8944932B2Inactive Publication Date: 2015-02-03MIZUNO CORPORATION
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Patents(United States)
Current Assignee / Owner
MIZUNO CORPORATION
Publication Date
2015-02-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

A calculating unit of a swing analyzer calculates, assuming that a golf club is in a uniform circular motion about a virtual center of rotation O during a swing, a virtual speed Vh at a central point R of a golf club head, based on a distance between first and second acceleration sensors, a distance between the first acceleration sensor and the central point R of a golf club head and outputs from the first and second acceleration sensors, and calculates the speed of central point R of a golf club head utilizing the virtual speed Vh.
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Description

[0001] This nonprovisional application is based on Japanese Patent Application No. 2008-093427 filed with the Japan Patent Office on Mar. 31, 2008, the entire contents of which are hereby incorporated by reference.BACKGROUND OF THE INVENTION

[0002] 1. Field of the Invention

[0003] The present invention relates to a swing analyzer and, more specifically, to a swing analyzer capable of measuring swing speed of a portion as an object of measurement of a swing member.

[0004] 2. Description of the Background Art

[0005] Conventionally, various swing analyzers measuring states of swings of golf or baseball batting have been proposed.

[0006] By way of example, Japanese Patent Laying-Open No. 3-126477 discloses a swing analyzing device including a swing implement having a shaft-like part, first and second two acceleration sensors arranged spaced apart by a distance on the shaft-like part with the direction of acceleration detection substantially matching axial line of the shaft-like part, and a transla...

Claims

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